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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: This class implements MMMADisplayWindow functionality |
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15 * for Camera viewfinder usage. |
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16 * |
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17 */ |
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18 |
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19 |
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20 // Include Files |
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21 #include <eikenv.h> |
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22 #include <gdi.h> |
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23 #include <jdebug.h> |
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24 #include <AknsUtils.h> |
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25 #include <AknsDrawUtils.h> |
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26 |
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27 #include <cameraapp.mbg> |
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28 |
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29 // Used for iDisplay member |
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30 |
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31 #include "cmmacamerawindow.h" |
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32 |
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33 // Camera viewfinder start delay |
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34 const TInt KStarterTimeout = 100000; //100 msecs |
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35 |
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36 // Margin of icon displayed instead of viewfinder in case of error |
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37 const TInt KErrorIconMargin = 5; //5 pixels |
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38 |
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39 |
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40 _LIT(KCameraAppBitmapFile, "z:\\resource\\apps\\cameraapp.mif"); |
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41 |
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42 |
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43 // --------------------------------------------------------------------------- |
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44 // CMMACameraWindow::NewL |
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45 // Two-phased constructor. |
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46 // Use this method to create a CMMACameraWindow instance. |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CMMACameraWindow* CMMACameraWindow::NewL(TInt aCameraHandle) |
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50 { |
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51 CMMACameraWindow* self = new(ELeave)CMMACameraWindow(aCameraHandle); |
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52 return self; |
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53 } |
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54 |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // CMMACameraWindow::~CMMACameraWindow |
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58 // Destructor. |
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59 // NOTE: iUICamera have to be deleted by ReleaseUiResources() called |
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60 // from UI thread |
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61 // --------------------------------------------------------------------------- |
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62 // |
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63 CMMACameraWindow::~CMMACameraWindow() |
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64 { |
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65 // It's not allowed to delete any nonsharable object here. |
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66 // This must be done in Destroy(). |
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67 // If the iDisplay is set, |
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68 // instance should be deleted by sending |
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69 // event from UI to be received by MUiEventConsumer. |
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70 } |
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71 |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // CMMACameraWindow::ViewFinderActive |
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75 // Gets an information if the viewfinder is started. |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 TBool CMMACameraWindow::ViewFinderActive() |
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79 { |
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80 return iUICamera && iViewFinderVisible; |
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81 } |
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82 |
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83 |
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84 // --------------------------------------------------------------------------- |
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85 // CMMACameraWindow::SetStarted |
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86 // Notifies window about Started state change. |
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87 // If started, tries to start viewfinder. |
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88 // If not started, stops viewfinder. |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 void CMMACameraWindow::SetStarted(TBool aStarted) |
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92 { |
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93 iStarted = aStarted; |
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94 if (iDisplay) |
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95 { |
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96 if (iStarted) |
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97 { |
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98 iDisplay->UIGetCallback( |
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99 *this, CMMACameraWindow::EShowViewFinder); |
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100 } |
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101 else |
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102 { |
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103 iDisplay->UIGetCallback( |
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104 *this, CMMACameraWindow::EHideViewFinder); |
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105 } |
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106 } |
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107 } |
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108 |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // CMMACameraWindow::SetDisplay |
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112 // Sets iDisplay used to invoke callbacks from UI thread. |
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113 // --------------------------------------------------------------------------- |
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114 // |
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115 void CMMACameraWindow::SetDisplay(MMMADisplay *aDisplay) |
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116 { |
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117 if (iDisplay != aDisplay) |
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118 { |
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119 if (iDisplay) |
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120 { |
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121 // Clear the resources created within the old Display |
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122 iDisplay->UIGetCallback( |
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123 *this, CMMACameraWindow::EDeleteViewFinder); |
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124 } |
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125 |
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126 // Set the new Display |
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127 iDisplay = aDisplay; |
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128 |
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129 if (iDisplay) |
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130 { |
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131 // Get a DSA resources for the new Display |
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132 iDisplay->UIGetDSAResources(*this, MMMADisplay::EMmaThread); |
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133 } |
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134 } |
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135 } |
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136 |
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137 |
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138 // --------------------------------------------------------------------------- |
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139 // From class MMMADisplayWindow |
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140 // CMMACameraWindow::SetDestinationBitmapL |
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141 // |
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142 // --------------------------------------------------------------------------- |
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143 // |
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144 void CMMACameraWindow::SetDestinationBitmapL(CFbsBitmap* /*aBitmap*/) |
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145 { |
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146 // Ignored, this window will not be used for actual drawing |
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147 DEBUG("CMMACameraWindow::SetDestinationBitmapL"); |
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148 } |
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149 |
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150 |
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151 // --------------------------------------------------------------------------- |
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152 // From class MMMADisplayWindow |
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153 // CMMACameraWindow::DrawFrameL |
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154 // |
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155 // --------------------------------------------------------------------------- |
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156 // |
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157 void CMMACameraWindow::DrawFrameL(const CFbsBitmap* /*aBitmap*/) |
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158 { |
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159 // Ignored, this window will not be used for actual drawing |
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160 } |
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161 |
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162 |
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163 // --------------------------------------------------------------------------- |
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164 // From class MMMADisplayWindow |
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165 // CMMACameraWindow::SetDrawRect |
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166 // |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 void CMMACameraWindow::SetDrawRect(const TRect& aRect) |
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170 { |
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171 // MMAPI thread |
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172 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRect TL:%d,%d", |
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173 aRect.iTl.iX, aRect.iTl.iY); |
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174 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRect BR:%d,%d", |
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175 aRect.iBr.iX, aRect.iBr.iY); |
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176 |
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177 iDrawRect = aRect; |
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178 |
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179 if (iDisplay) |
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180 { |
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181 iDisplay->UIGetCallback(*this, CMMACameraWindow::EResetViewFinder); |
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182 } |
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183 } |
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184 |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // From class MMMADisplayWindow |
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188 // CMMACameraWindow::SetDrawRectThread |
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189 // |
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190 // --------------------------------------------------------------------------- |
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191 // |
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192 void CMMACameraWindow::SetDrawRectThread(const TRect& aRect) |
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193 { |
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194 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRectThread TL:%d,%d", |
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195 aRect.iTl.iX, aRect.iTl.iY); |
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196 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRectThread BR:%d,%d", |
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197 aRect.iBr.iX, aRect.iBr.iY); |
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198 |
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199 // Note: Runs in UI thread only |
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200 |
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201 // Bitmap window's rect can be set in any thread. |
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202 if (iDrawRect != aRect) |
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203 { |
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204 iDrawRect = aRect; |
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205 |
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206 // Stop and start ViewFinder to update position |
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207 ResetViewFinder(); |
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208 } |
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209 } |
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210 |
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211 |
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212 // --------------------------------------------------------------------------- |
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213 // From class MMMADisplayWindow |
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214 // CMMACameraWindow::DrawRect |
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215 // |
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216 // --------------------------------------------------------------------------- |
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217 // |
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218 const TRect& CMMACameraWindow::DrawRect() |
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219 { |
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220 return iDrawRect; |
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221 } |
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222 |
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223 |
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224 // --------------------------------------------------------------------------- |
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225 // From class MMMADisplayWindow |
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226 // CMMACameraWindow::WindowSize |
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227 // |
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228 // --------------------------------------------------------------------------- |
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229 // |
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230 TSize CMMACameraWindow::WindowSize() |
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231 { |
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232 return iDrawRect.Size(); |
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233 } |
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234 |
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235 |
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236 // --------------------------------------------------------------------------- |
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237 // From class MMMADisplayWindow |
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238 // CMMACameraWindow::SetPosition |
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239 // |
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240 // --------------------------------------------------------------------------- |
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241 // |
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242 void CMMACameraWindow::SetPosition(const TPoint& aPosition) |
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243 { |
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244 // Note: Runs in UI thread only |
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245 SetDrawRectThread(TRect(aPosition, iDrawRect.Size())); |
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246 } |
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247 |
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248 |
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249 // --------------------------------------------------------------------------- |
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250 // From class MMMADisplayWindow |
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251 // CMMACameraWindow::SetVisible |
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252 // |
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253 // --------------------------------------------------------------------------- |
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254 // |
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255 void CMMACameraWindow::SetVisible(TBool aVisible, TBool aUseEventServer) |
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256 { |
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257 iVisible = aVisible; |
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258 |
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259 if (aUseEventServer) |
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260 { |
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261 // We are in UI thread now. |
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262 SetViewFinderVisibility(aVisible); |
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263 } |
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264 else |
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265 { |
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266 // MMAPI thread |
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267 if (iDisplay) |
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268 { |
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269 if (aVisible) |
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270 { |
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271 iDisplay->UIGetCallback( |
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272 *this, CMMACameraWindow::EShowViewFinder); |
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273 } |
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274 else |
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275 { |
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276 iDisplay->UIGetCallback( |
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277 *this, CMMACameraWindow::EHideViewFinder); |
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278 } |
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279 } |
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280 } |
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281 } |
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282 |
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283 |
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284 // --------------------------------------------------------------------------- |
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285 // From class MMMADisplayWindow |
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286 // CMMACameraWindow::SetWindowRect |
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287 // |
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288 // --------------------------------------------------------------------------- |
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289 // |
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290 void CMMACameraWindow::SetWindowRect( |
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291 const TRect& aRect, |
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292 MMMADisplay::TThreadType aThreadType) |
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293 { |
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294 DEBUG_INT2("MMA::CMMACameraWindow::SetWindowRect TL:%d,%d", |
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295 aRect.iTl.iX, aRect.iTl.iY); |
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296 DEBUG_INT2("MMA::CMMACameraWindow::SetWindowRect BR:%d,%d", |
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297 aRect.iBr.iX, aRect.iBr.iY); |
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298 |
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299 if (iClientRect != aRect) |
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300 { |
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301 iClientRect = aRect; |
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302 |
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303 if (aThreadType == MMMADisplay::EUiThread) |
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304 { |
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305 ResetViewFinder(); |
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306 } |
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307 else |
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308 { |
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309 iDisplay->UIGetCallback( |
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310 *this, CMMACameraWindow::EResetViewFinder); |
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311 } |
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312 } |
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313 } |
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314 |
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315 |
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316 // --------------------------------------------------------------------------- |
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317 // From class MMMADisplayWindow |
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318 // CMMACameraWindow::WindowRect |
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319 // |
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320 // --------------------------------------------------------------------------- |
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321 // |
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322 const TRect& CMMACameraWindow::WindowRect() |
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323 { |
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324 return iClientRect; |
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325 } |
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326 |
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327 |
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328 // --------------------------------------------------------------------------- |
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329 // From class MMMADisplayWindow |
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330 // CMMACameraWindow::GetDisplayWindowType |
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331 // |
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332 // --------------------------------------------------------------------------- |
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333 // |
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334 MMMADisplayWindow::TDisplayWindowType |
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335 CMMACameraWindow::GetDisplayWindowType() const |
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336 { |
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337 return EDisplayWindowTypeIsCamera; |
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338 } |
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339 |
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340 |
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341 // --------------------------------------------------------------------------- |
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342 // From class MMMADisplayWindow |
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343 // CMMACameraWindow::IsVisible |
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344 // |
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345 // --------------------------------------------------------------------------- |
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346 // |
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347 TBool CMMACameraWindow::IsVisible() const |
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348 { |
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349 return iVisible; |
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350 } |
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351 |
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352 |
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353 // --------------------------------------------------------------------------- |
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354 // From class MMMADisplayWindow |
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355 // CMMACameraWindow::ContainerSet |
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356 // |
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357 // --------------------------------------------------------------------------- |
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358 // |
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359 void CMMACameraWindow::ContainerSet() |
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360 { |
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361 // We are in UI thread now |
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362 |
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363 // Container was probably not set when |
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364 // iDisplay was set, |
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365 // we can now try get the DSA stuff again |
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366 if (!iUICamera && iDisplay) |
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367 { |
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368 // Get a DSA stuff for the new Display |
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369 iDisplay->UIGetDSAResources(*this, MMMADisplay::EUiThread); |
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370 } |
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371 } |
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372 |
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373 |
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374 // --------------------------------------------------------------------------- |
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375 // From class MMMADisplayWindow |
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376 // CMMACameraWindow::ContainerDestroyed |
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377 // |
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378 // --------------------------------------------------------------------------- |
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379 // |
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380 void CMMACameraWindow::ContainerDestroyed() |
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381 { |
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382 // We are in UI thread now |
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383 ReleaseUiResources(); |
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384 } |
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385 |
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386 |
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387 // --------------------------------------------------------------------------- |
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388 // From class MCameraObserver |
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389 // CMMACameraWindow::ReserveComplete |
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390 // |
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391 // --------------------------------------------------------------------------- |
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392 // |
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393 void CMMACameraWindow::ReserveComplete(TInt aError) |
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394 { |
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395 DEBUG_INT("MMA::CMMACameraWindow::ReserveComplete %d", aError); |
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396 |
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397 if (aError == KErrNone) |
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398 { |
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399 // camera will notify completion with PowerOnComplete method. |
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400 iUICamera->PowerOn(); |
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401 } |
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402 } |
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403 |
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404 |
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405 // --------------------------------------------------------------------------- |
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406 // From class MCameraObserver |
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407 // CMMACameraWindow::PowerOnComplete |
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408 // |
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409 // --------------------------------------------------------------------------- |
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410 // |
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411 void CMMACameraWindow::PowerOnComplete(TInt aError) |
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412 { |
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413 DEBUG_INT("MMA::CMMACameraWindow::PowerOnComplete %d", aError); |
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414 |
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415 if (aError == KErrNone) |
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416 { |
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417 iCameraPowerOn = ETrue; |
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418 SetViewFinderVisibility(ETrue); |
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419 } |
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420 } |
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421 |
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422 |
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423 // --------------------------------------------------------------------------- |
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424 // From class MCameraObserver |
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425 // CMMACameraWindow::ViewFinderFrameReady |
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426 // |
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427 // --------------------------------------------------------------------------- |
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428 // |
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429 void CMMACameraWindow::ViewFinderFrameReady(CFbsBitmap& /*aFrame*/) |
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430 { |
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431 // Empty implementation of the interface method |
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432 DEBUG("MMA::CMMACameraWindow::ViewFinderFrameReady"); |
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433 } |
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434 |
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435 |
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436 // --------------------------------------------------------------------------- |
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437 // From class MCameraObserver |
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438 // CMMACameraWindow::ImageReady |
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439 // |
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440 // --------------------------------------------------------------------------- |
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441 // |
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442 void CMMACameraWindow::ImageReady(CFbsBitmap* /*aBitmap*/, |
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443 HBufC8* /*aData*/, |
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444 TInt /*aError*/) |
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445 { |
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446 // Empty implementation of the interface method |
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447 DEBUG("MMA::CMMACameraWindow::ImageReady"); |
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448 } |
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449 |
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450 |
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451 // --------------------------------------------------------------------------- |
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452 // From class MCameraObserver |
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453 // CMMACameraWindow::FrameBufferReady |
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454 // |
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455 // --------------------------------------------------------------------------- |
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456 // |
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457 void CMMACameraWindow::FrameBufferReady(MFrameBuffer* /*aFrameBuffer*/, |
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458 TInt /*aError*/) |
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459 { |
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460 // Empty implementation of the interface method |
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461 DEBUG("MMA::CMMACameraWindow::FrameBufferReady"); |
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462 } |
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463 |
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464 |
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465 // --------------------------------------------------------------------------- |
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466 // From class MDirectScreenAccess. |
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467 // CMMACameraWindow::AbortNow |
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468 // |
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469 // --------------------------------------------------------------------------- |
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470 // |
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471 void CMMACameraWindow::AbortNow( |
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472 RDirectScreenAccess::TTerminationReasons /*aReasons*/) |
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473 { |
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474 SetViewFinderVisibility(EFalse); |
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475 } |
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476 |
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477 |
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478 // --------------------------------------------------------------------------- |
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479 // From class MDirectScreenAccess. |
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480 // CMMACameraWindow::Restart |
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481 // |
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482 // --------------------------------------------------------------------------- |
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483 // |
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484 void CMMACameraWindow::Restart( |
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485 RDirectScreenAccess::TTerminationReasons /*aReasons*/) |
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486 { |
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487 SetViewFinderVisibility(ETrue); |
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488 } |
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489 |
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490 |
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491 // --------------------------------------------------------------------------- |
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492 // CMMACameraWindow::CMMACameraWindow |
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493 // C++ constructor. |
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494 // --------------------------------------------------------------------------- |
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495 // |
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496 CMMACameraWindow::CMMACameraWindow(TInt aCameraHandle): |
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497 iVisible(EFalse), |
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498 iStarted(EFalse), |
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499 iViewFinderVisible(EFalse), |
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500 iCameraPowerOn(EFalse), |
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501 iDrawRect(0, 0, 0, 0), |
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502 iClientRect(0, 0, 0, 0), |
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503 iCameraHandle(aCameraHandle), |
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504 iUICamera(NULL), |
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505 iDisplay(NULL), |
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506 iStarterTimer(NULL), |
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507 iDirectAccess(NULL), |
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508 iErrorIconBitmap(NULL), |
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509 iErrorIconMaskBitmap(NULL) |
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510 { |
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511 } |
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512 |
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513 |
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514 // --------------------------------------------------------------------------- |
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515 // CMMACameraWindow::UIStartViewFinder |
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516 // Creates UI Camera. |
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517 // This CCamera instance is duplicated from handle given to the constructor. |
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518 // Have to be called from the thread which UI Camera will be controlled from. |
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519 // --------------------------------------------------------------------------- |
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520 // |
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521 void CMMACameraWindow::UIStartViewFinder( |
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522 RWsSession &aWs, |
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523 CWsScreenDevice &aScreenDevice, |
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524 RWindowBase &aWindow) |
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525 { |
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526 DEBUG("MMA::CMMACameraWindow::UIStartViewFinder"); |
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527 |
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528 iWs = &aWs; |
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529 iScreenDevice = &aScreenDevice; |
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530 iWindow = &aWindow; |
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531 |
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532 if (!iUICamera) |
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533 { |
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534 TRAPD(error, iUICamera = |
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535 CCamera::NewDuplicateL(*this, iCameraHandle)); |
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536 |
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537 DEBUG_INT( |
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538 "MMA::CMMACameraWindow::UIStartViewFinder - NewDuplicateL %d", |
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539 error); |
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540 |
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541 if (error == KErrNone) |
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542 { |
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543 iUICamera->Reserve(); |
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544 } |
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545 } |
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546 } |
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547 |
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548 |
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549 // --------------------------------------------------------------------------- |
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550 // CMMACameraWindow::SetViewFinderVisibility |
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551 // If UI Camera have been created, it starts/hides the DirectViewFinder. |
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552 // Have to be called from UI thread in which iUICamera instance was created. |
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553 // --------------------------------------------------------------------------- |
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554 // |
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555 void CMMACameraWindow::SetViewFinderVisibility(TBool aVisible) |
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556 { |
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557 DEBUG_INT("MMA::CMMACameraWindow::SetViewFinderVisibility - %d", |
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558 aVisible); |
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559 |
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560 if (!iUICamera || !iCameraPowerOn || iViewFinderVisible == aVisible) |
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561 { |
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562 return; |
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563 } |
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564 |
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565 if (aVisible) |
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566 { |
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567 // Viewfinder is going to start |
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568 if (!iVisible || !iStarted) |
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569 { |
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570 return; |
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571 } |
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572 |
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573 iViewFinderVisible = ETrue; |
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574 |
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575 if (!iStarterTimer) |
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576 { |
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577 // If starter timer haven't been created yet, create an instance |
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578 TRAPD( |
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579 timerErr, |
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580 iStarterTimer = CPeriodic::NewL(CActive::EPriorityIdle)); |
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581 |
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582 if (timerErr != KErrNone) |
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583 { |
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584 DEBUG_INT( |
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585 "MMA::CMMACameraWindow::SetViewFinderVisibility - timer error = %d", |
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586 timerErr); |
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587 __ASSERT_DEBUG(EFalse, User::Invariant()); |
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588 } |
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589 } |
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590 |
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591 if (!iStarterTimer->IsActive()) |
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592 { |
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593 iStarterTimer->Start( |
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594 KStarterTimeout, |
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595 0, |
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596 TCallBack(StarterTimerCallback, this)); |
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597 } |
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598 } |
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599 else |
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600 { |
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601 // Viewfinder is going to be cancelled |
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602 DEBUG( |
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603 "MMA::CMMACameraWindow::SetViewFinderVisibility - Stopping VF"); |
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604 |
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605 if (iStarterTimer && iStarterTimer->IsActive()) |
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606 { |
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607 // Cancel the running starter timer |
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608 iStarterTimer->Cancel(); |
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609 } |
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610 |
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611 if (iUICamera->ViewFinderActive()) |
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612 { |
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613 iUICamera->StopViewFinder(); |
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614 } |
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615 if (iDirectAccess->IsActive()) |
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616 { |
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617 iDirectAccess->Cancel(); |
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618 } |
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619 |
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620 iViewFinderVisible = EFalse; |
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621 } |
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622 } |
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623 |
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624 |
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625 // --------------------------------------------------------------------------- |
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626 // CMMACameraWindow::StarterTimerCallback |
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627 // Executed at the expiry of the iStartedTimer. |
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628 // --------------------------------------------------------------------------- |
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629 // |
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630 TInt CMMACameraWindow::StarterTimerCallback(TAny* aThis) |
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631 { |
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632 CMMACameraWindow* self = static_cast<CMMACameraWindow*>(aThis); |
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633 ASSERT(self); |
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634 |
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635 self->StartViewFinder(); |
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636 |
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637 // We don't want to run the callback again |
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638 return EFalse; |
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639 } |
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640 |
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641 |
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642 // --------------------------------------------------------------------------- |
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643 // CMMACameraWindow::StartViewFinder |
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644 // Starts viewfinder. |
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645 // --------------------------------------------------------------------------- |
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646 // |
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647 void CMMACameraWindow::StartViewFinder() |
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648 { |
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649 DEBUG(" < StartViewFinder"); |
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650 |
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651 ASSERT(iUICamera); |
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652 ASSERT(iCameraPowerOn); |
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653 ASSERT(iStarted); |
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654 |
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655 iStarterTimer->Cancel(); |
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656 |
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657 DrawUnderlayer(); |
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658 |
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659 |
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660 // Set the drawing area |
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661 TRect drawRect(iDrawRect); |
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662 drawRect.Move(iClientRect.iTl); |
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663 |
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664 DEBUG_INT2( |
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665 "MMA::CMMACameraWindow::StartViewFinder - Starting VF TL:%d,%d", |
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666 drawRect.iTl.iX, |
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667 drawRect.iTl.iY); |
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668 DEBUG_INT2( |
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669 "MMA::CMMACameraWindow::StartViewFinder - Starting VF BR:%d,%d", |
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670 drawRect.iBr.iX, |
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671 drawRect.iBr.iY); |
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672 |
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673 TRAPD(vfError, iUICamera->StartViewFinderDirectL( |
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674 *iWs, *iScreenDevice, *iWindow, drawRect)); |
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675 |
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676 if (vfError == KErrNone) |
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677 { |
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678 DEBUG("MMA::CMMACameraWindow::StartViewFinder - Start OK"); |
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679 } |
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680 else |
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681 { |
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682 DEBUG_INT( |
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683 "MMA::CMMACameraWindow::StartViewFinder() - \ |
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684 StartViewFinderDirectL error=%d", vfError); |
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685 |
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686 TRAP_IGNORE(DrawViewFinderErrorL(vfError, drawRect)); |
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687 } |
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688 |
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689 DEBUG(" > StartViewFinder"); |
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690 } |
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691 |
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692 |
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693 // --------------------------------------------------------------------------- |
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694 // CMMACameraWindow::DrawViewFinderError() |
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695 // Draws the error message to specified area. |
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696 // Used in cases when viewfinder is unable to start. |
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697 // --------------------------------------------------------------------------- |
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698 // |
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699 void CMMACameraWindow::DrawViewFinderErrorL( |
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700 const TInt /*aError*/, |
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701 const TRect& aDrawRect) |
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702 { |
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703 |
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704 ASSERT(iDirectAccess); |
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705 TInt dcError = KErrNone; |
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706 if (!iDirectAccess->IsActive()) |
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707 { |
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708 TRAP(dcError, iDirectAccess->StartL()); |
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709 } |
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710 |
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711 TRect drawRect(aDrawRect); |
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712 |
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713 if (dcError == KErrNone) |
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714 { |
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715 drawRect.Intersection(iClientRect); |
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716 drawRect.Move(-iWindow->AbsPosition()); |
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717 |
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718 CFbsBitGc* directGc = iDirectAccess->Gc(); |
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719 directGc->SetClippingRect(drawRect); |
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720 directGc->SetBrushColor(TRgb(128,128,128)); |
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721 directGc->SetPenColor(TRgb(128,0,0)); |
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722 directGc->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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723 directGc->SetPenStyle(CGraphicsContext::ESolidPen); |
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724 directGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha); |
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725 directGc->DrawRect(drawRect); |
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726 |
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727 if (!iErrorIconBitmap || !iErrorIconMaskBitmap) |
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728 { |
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729 if (iErrorIconBitmap) |
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730 { |
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731 delete iErrorIconBitmap; |
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732 iErrorIconBitmap = NULL; |
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733 } |
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734 |
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735 if (iErrorIconMaskBitmap) |
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736 { |
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737 delete iErrorIconMaskBitmap; |
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738 iErrorIconMaskBitmap = NULL; |
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739 } |
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740 |
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741 AknsUtils::CreateIconL( |
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742 AknsUtils::SkinInstance(), |
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743 KAknsIIDQgnIndiCam4Camera, |
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744 iErrorIconBitmap, |
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745 iErrorIconMaskBitmap, |
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746 KCameraAppBitmapFile, |
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747 EMbmCameraappQgn_indi_cam4_camera, |
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748 EMbmCameraappQgn_indi_cam4_camera_mask |
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749 ); |
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750 } |
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751 |
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752 //TRect iconRect |
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753 drawRect.iTl.iX += KErrorIconMargin; |
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754 drawRect.iTl.iY += KErrorIconMargin; |
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755 drawRect.iBr.iX -= KErrorIconMargin; |
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756 drawRect.iBr.iY -= KErrorIconMargin; |
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757 |
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758 if (iErrorIconBitmap->SizeInPixels() != drawRect.Size()) |
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759 { |
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760 AknIconUtils::SetSize(iErrorIconBitmap, drawRect.Size()); |
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761 AknIconUtils::SetSize(iErrorIconMaskBitmap, drawRect.Size()); |
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762 } |
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763 |
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764 directGc->BitBltMasked( |
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765 drawRect.iTl, iErrorIconBitmap, |
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766 TRect(iErrorIconBitmap->SizeInPixels()), |
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767 iErrorIconMaskBitmap, EFalse); |
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768 |
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769 iDirectAccess->ScreenDevice()->Update(); |
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770 } |
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771 |
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772 } |
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773 |
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774 |
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775 // --------------------------------------------------------------------------- |
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776 // CMMACameraWindow::ReleaseUiResources() |
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777 // Stops the DirectViewFinder and deletes UI Camera instance |
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778 // Have to be called from UI thread in which UI Camera |
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779 // have been created before the CMMACameraWindow instance |
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780 // is deleted. |
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781 // --------------------------------------------------------------------------- |
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782 // |
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783 void CMMACameraWindow::ReleaseUiResources() |
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784 { |
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785 if (iUICamera) |
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786 { |
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787 SetViewFinderVisibility(EFalse); |
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788 // iStarterTimer is cancelled by previous call |
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789 // it can be deleted now |
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790 delete iStarterTimer; |
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791 iStarterTimer = NULL; |
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792 iUICamera->Release(); |
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793 delete iUICamera; |
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794 iUICamera = NULL; |
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795 iCameraPowerOn = EFalse; |
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796 iDirectAccess->Cancel(); |
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797 delete iDirectAccess; |
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798 iDirectAccess = NULL; |
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799 delete iErrorIconBitmap; |
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800 iErrorIconBitmap = NULL; |
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801 delete iErrorIconMaskBitmap; |
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802 iErrorIconMaskBitmap = NULL; |
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803 } |
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804 } |
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805 |
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806 |
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807 // --------------------------------------------------------------------------- |
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808 // CMMACameraWindow::ResetViewFinder |
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809 // Resets (stops and starts) viewfinder |
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810 // --------------------------------------------------------------------------- |
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811 // |
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812 void CMMACameraWindow::ResetViewFinder() |
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813 { |
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814 |
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815 if (iStarterTimer && !iStarterTimer->IsActive() && iStarted) |
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816 { |
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817 SetViewFinderVisibility(EFalse); |
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818 SetViewFinderVisibility(ETrue); |
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819 } |
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820 } |
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821 |
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822 |
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823 // --------------------------------------------------------------------------- |
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824 // CMMACameraWindow::DrawUnderlayer |
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825 // Draws the underlayer of viewfinder. |
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826 // Used to clear the alpha value. |
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827 // Uses Direct Screen Access. |
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828 // --------------------------------------------------------------------------- |
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829 // |
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830 TBool CMMACameraWindow::DrawUnderlayer() |
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831 { |
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832 ASSERT(iDirectAccess); |
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833 |
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834 |
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835 DEBUG("Draw under layer"); |
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836 TInt error = KErrNone; |
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837 if (!iDirectAccess->IsActive()) |
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838 { |
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839 TRAP(error, iDirectAccess->StartL()); |
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840 } |
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841 if (error == KErrNone) |
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842 { |
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843 DEBUG("Drawing alpha pixels to zero"); |
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844 CFbsBitGc* directGc = iDirectAccess->Gc(); |
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845 TInt count = iDirectAccess->DrawingRegion()->Count(); |
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846 if (count > 0) |
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847 { |
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848 TRect drawRect(iDrawRect); |
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849 drawRect.Move(iClientRect.iTl); |
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850 drawRect.Intersection(iClientRect); |
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851 drawRect.Move(-iWindow->AbsPosition()); |
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852 |
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853 directGc->SetClippingRect(drawRect); |
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854 directGc->SetBrushColor(TRgb(0,0,0,0)); |
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855 directGc->SetPenColor(TRgb(0,0,0,0)); |
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856 directGc->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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857 directGc->SetPenStyle(CGraphicsContext::ESolidPen); |
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858 directGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha); |
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859 directGc->DrawRect(drawRect); |
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860 iDirectAccess->ScreenDevice()->Update(); |
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861 } |
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862 |
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863 if (count <= 0) |
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864 { |
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865 // DSA may work in the next attempt |
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866 return EFalse; |
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867 } |
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868 } |
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869 else |
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870 { |
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871 // DSA may work in the next attempt |
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872 return EFalse; |
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873 } |
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874 |
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875 // Success, no more attempt is needed |
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876 return ETrue; |
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877 } |
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878 |
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879 |
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880 // --------------------------------------------------------------------------- |
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881 // CMMACameraWindow::Destroy |
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882 // Deletes this object. |
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883 // --------------------------------------------------------------------------- |
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884 // |
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885 void CMMACameraWindow::Destroy() |
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886 { |
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887 // Delete itself |
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888 delete this; |
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889 } |
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890 |
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891 |
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892 // --------------------------------------------------------------------------- |
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893 // From class MUiEventConsumer. |
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894 // CMMACameraWindow::MdcDSAResourcesCallback |
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895 // Callback to iDisplay->UIGetDSAResources(). |
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896 // Invoked asynchronously from UI Event Server thread. |
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897 // --------------------------------------------------------------------------- |
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898 // |
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899 void CMMACameraWindow::MdcDSAResourcesCallback( |
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900 RWsSession &aWs, |
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901 CWsScreenDevice &aScreenDevice, |
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902 RWindowBase &aWindow) |
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903 { |
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904 TRAPD(error, iDirectAccess = CDirectScreenAccess::NewL(aWs, |
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905 aScreenDevice, |
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906 aWindow, |
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907 *this)); |
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908 DEBUG_INT("MMA::CMMACameraWindow::MdcDSAResourcesCallback, error = %d", error); |
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909 if (KErrNone != error) |
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910 { |
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911 return; |
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912 } |
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913 this->UIStartViewFinder(aWs, aScreenDevice, aWindow); |
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914 } |
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915 |
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916 |
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917 // --------------------------------------------------------------------------- |
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918 // From class MUiEventConsumer. |
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919 // CMMACameraWindow::MdcUICallback |
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920 // Callback to iDisplay->UIGetCallback(). |
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921 // Invoked asynchronously from UI Event Server thread. |
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922 // --------------------------------------------------------------------------- |
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923 // |
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924 void CMMACameraWindow::MdcUICallback(TInt aCallbackId) |
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925 { |
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926 DEBUG("MMA::CMMACameraWindow::MdcUICallback"); |
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927 |
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928 switch (aCallbackId) |
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929 { |
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930 case EDeleteViewFinder: |
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931 ReleaseUiResources(); |
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932 break; |
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933 case EHideViewFinder: |
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934 SetViewFinderVisibility(EFalse); |
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935 break; |
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936 case EShowViewFinder: |
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937 SetViewFinderVisibility(ETrue); |
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938 break; |
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939 case EResetViewFinder: |
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940 ResetViewFinder(); |
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941 break; |
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942 case EDestroyWindow: |
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943 Destroy(); |
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944 break; |
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945 } |
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946 } |
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947 |
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948 |
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949 // END OF FILE |